Hansen; Per K.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hansen; Per K..The latest application filed is for "optical pointing device".
- Hansen; Per K. - Burlington VT
- Hansen; Per K. - South Burlington VT
| Patent | Date |
|---|---|
| Optical pointing device Grant 5,045,843 - Hansen September 3, 1 | 1991-09-03 |
| Omnidirectional distance measurement system Grant 4,858,203 - Hansen * August 15, 1 | 1989-08-15 |
| Line of sight measuring system Grant 4,823,170 - Hansen April 18, 1 | 1989-04-18 |
| Voice control system Grant 4,776,016 - Hansen October 4, 1 | 1988-10-04 |
| Directional microphone system Grant 4,653,102 - Hansen March 24, 1 | 1987-03-24 |
| Method and apparatus for position and orientation measurement using a magnetic field and retransmission Grant 4,642,786 - Hansen February 10, 1 | 1987-02-10 |
| Magnetic position and orientation measurement system Grant 4,622,644 - Hansen November 11, 1 | 1986-11-11 |
| Displacement sensing device utilizing adjustable tuned circuit Grant 4,618,822 - Hansen October 21, 1 | 1986-10-21 |
| Passive optical position measurement system Grant 4,576,481 - Hansen March 18, 1 | 1986-03-18 |
| Ultrasonic position detecting system Grant 4,506,354 - Hansen March 19, 1 | 1985-03-19 |
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